Support bracket



FIG. 1 is a top, front and side perspective view of a support bracket showing my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear side elevation view thereof. 

The ornamental design for a support bracket, as shown and described. 